Immersion objective and light microscope

US9488817B2 · kind B2 · utility

Assignee

• Carl Zeiss Microscopy GmbH · DE

Inventors

• Renhu Shi · Göttingen, DE
• Werner Kleinschmidt · Dransfeld, DE
• Georg Herbst · Oettingen, DE
• Holger Richter · Tauberbischofsheim, DE
• Carsten Hoyer · Jülich, DE

Key dates

• Filing date: Apr 10, 2013
• Grant date: Nov 8, 2016
• Expiry date: Dec 6, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B27/0068
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An immersion objective for a light microscope with a first lens group including a first and second lenses, with a third lens arranged behind the first lens group, a first air gap between the first lens group and the third lens, with a second lens group behind the third lens and including fourth, fifth and sixth lenses, a second air gap formed the third lens and the second lens group, and a third lens group behind the second lens group including seventh, eighth and ninth lenses. Tenth, eleventh and twelfth lens are provided behind the third lens group. For correction of aberrations a fourth air gap is formed between the third lens group and the tenth lens, a fifth air gap is formed between the tenth lens and the eleventh lens and a sixth air gap is formed between the eleventh lens and the twelfth lens.